Allow Removing Y-Axis Labels Without Retaining Space in NumericAxis

[iOS-Max]

Description
Currently, when setting labelStyle: TextStyle(color: Colors.transparent) in primaryYAxis of SfCartesianChart, the labels are hidden, but the space they occupy remains. This prevents the chart from fully utilizing the available area.

I want to

1. Show the Y-axis line (keep axisLine visible).
2. Remove Y-axis labels (no text should appear).
3. Remove the space occupied by the labels, so the chart appears fully stretched without any reserved padding.

Steps to Reproduce

1. Define a SfCartesianChart with NumericAxis for primaryYAxis.
2. Hide the labels using labelStyle: TextStyle(color: Colors.transparent).
3. Observe that the labels are not displayed, but the space where they would appear remains.

Expected Behavior
There should be an option to completely remove the Y-axis labels and their space, so that the chart area expands accordingly.

[AswiniDileep]

Hi iOS-Max,

We have analyzed your query, and we would like to inform you can achieve your requirement of removing the Y-axis labels and reducing extra space on the Y-axis by using the labelStyle and maximumLabelWidth properties available in the axis of SfCartesianChart.

1. Use fontSize in TextStyle

Initially, you might try hiding the labels by setting only the color to transparent in labelStyle. While this makes the labels invisible, the space they occupy remains unchanged. However, if you set fontSize to 0 along with color to Colors.transparent, the labels become both invisible and removing the extra space they would have occupied. We have attached the demo below for your reference.

primaryYAxis: NumericAxis(
  labelStyle: TextStyle(
    fontSize: 0, 
    color: Colors.transparent, 
  ),
),

UG link: axis-customization#axis-label-customization

2. Use maximumLabelWidth property

To remove the Y-axis labels and the extra space, set maximumLabelWidth to 0. This can ensure the chart fully utilizes the available area. We have attached the demo below for your reference.

primaryYAxis: NumericAxis(
  maximumLabelWidth: 0,
  ),

UG link: axis-customization#axis-label-width-customization

Please check and get back to us if you require further assistance.

Regards,
Aswini S